基于新型控制方法的三相四线制有源电力滤波器研究  

Research of Three Phase Four Wire Active Power Filter Based on Novel Control Method

作　　者：刘宇航[1] 杨静[1] 李昊[1] 王超[1] 陈岭[1] 

机构地区：[1]后勤工程学院,重庆401311

出　　处：《自动化技术与应用》2017年第4期74-77,85,共5页Techniques of Automation and Applications

摘　　要：非线性负载产生的谐波对电能质量影响很大,因而找到抑制非线性负载谐波的有效途径很有必要。本文将基于新型控制方法的三相四线制有源电力滤波器应用在对非线性负载的谐波抑制上。和传统的单一控制方法相比,基于新型控制方法的三相四线制有源电力滤波器将单周控制方法和改进空间矢量脉宽调制(SVPWM)方法结合起来,省略了谐波检测电路的同时在一定程度上降低了开关损耗,提高了直流侧的电压利用率。搭建了基于单周控制和改进的SVPWM相结合的三相四线制有源电力滤波器模型,进行谐波抑制仿真,对仿真结果进行分析可知,基于单周控制和改进空间矢量控制的三相四线制有源电力滤波器对非线性负载产生的谐波有良好的抑制效果。The harmonic of nonlinear load has a bad influence on power quality, so it is very necessary to find an effective way to suppress the harmonic. New control method of three phase four wire active power filter （APF） is applied to suppress harmonic in nonlinear load in this paper. Compared with traditional single methods, one cycle control method and improved space vector pulse width （SVPWM） method are combined, the new control method omits the harmonic detection circuit, reduces the switching loss in certain degree and the utilization ratio of the DC side voltage is improved. The model of new control method of three phase four wire APF model is built. Then simulation analysis on harmonic suppression is made. The simulation results are analyzed, new control method of three phase four wire APF has a good inhibition effect in harmonic produced by nonlinear load.

关 键 词：非线性负载 谐波 单周控制 SVPWM 三相四线制 有源电力滤波器 

分 类 号：TM46[电气工程—电器]